String Extensions

A set of string extensions to extend string capabilities of JavaScript.

The list of extensions:

• trimLeft
• trimRight
• trim
• padLeft
• padRight
• insert
• startsWith
• endsWith
• isNullOrEmpty
• isNullOrWhitespace
• append
• appendTo
• prepend
• prependTo
• capitalize
• count
• isEmail
• isURL
• toTime (integer)
• toTime (string)
• valiDate

trimLeft

var textToBeTrimmed = "     No space please!";
console.log( textToBeTrimmed.trimLeft() ); // outputs: "No space please!"

textToBeTrimmed = "zzzzzzzzzzWake up!";
console.log( textToBeTrimmed.trimLeft("z") ); // outputs: "Wake up!"

trimRight

var textToBeTrimmed = "No space please!     ";
console.log( textToBeTrimmed.trimRight() ); // outputs: "No space please!"

textToBeTrimmed = "Sleeping Beautyzzzzzzzzzz";
console.log( textToBeTrimmed.trimRight("z") ); // outputs: "Sleeping Beauty"

trim

var textToBeTrimmed = "     Space, space everywhere!     ";
console.log( textToBeTrimmed.trim() ); // outputs: "Space, space everywhere!"

textToBeTrimmed = "zzzzzzzzzzDo not disturb...zzzzzzzzzzz";
console.log( textToBeTrimmed.trim("z") ); // outputs: "Do not disturb..."

padLeft

var textToBePadded = "Pad me, right?!?";
console.log( textToBePadded.padLeft(20) ); // outputs: "    Pad me, right?!?"

textToBePadded = "Fill in the blanks";
console.log( textToBePadded.padLeft(20, "_") ); // outputs: "__Fill in the blanks"

padRight

var textToBePadded = "No space left";
console.log( textToBePadded.padRight(20) ); // outputs: "No space left       "

textToBePadded = "Fill in the blanks";
console.log( textToBePadded.padRight(20, "_") ); // outputs: "Fill in the blanks__"

insert

var myText = "NoSpace";
console.log( myText.insert(2, " ") ); // outputs: "No Space"

startsWith

var trickyQuestion = "Does this dress make me look fat?";
console.log( trickyQuestion.startsWith("Does") ); // outputs: true
console.log( trickyQuestion.startsWith("D") );    // outputs: true
console.log( trickyQuestion.startsWith("Yes") );  // outputs: false

endsWith

var scaryQuestion = "Does this look infected?";
console.log( scaryQuestion.endsWith("?") );        // outputs: true
console.log( scaryQuestion.endsWith("ed?") );      // outputs: true
console.log( scaryQuestion.endsWith("infected") ); // outputs: false

isNullOrEmpty

var temp = "";
console.log( temp.isNullOrEmpty() );        // outputs: true
temp = "  ";
console.log( temp.isNullOrEmpty() );        // outputs: false
temp = "full";
console.log( temp.isNullOrEmpty() );        // outputs: false

isNullOrWhitespace

var temp = "";
console.log( temp.isNullOrWhitespace() );   // outputs: true
temp = "  ";
console.log( temp.isNullOrWhitespace() );   // outputs: true
temp = "full";
console.log( temp.isNullOrWhitespace() );   // outputs: false

append

console.log( "You complete ".append("me") );   // outputs: "You complete me"

appendTo

var perfect = "yang", balance = "ying";
console.log( perfect.appendTo(balance) );   // outputs: "yingyang"

prepend

var yodaStyle = "Do, or do not. There is no try.";
console.log( yodaStyle.prepend("No! Try not. ") );   // outputs: "No! Try not. Do, or do not. There is no try."

prependTo

var reverseYodaStyle = "Do, or do not. There is no try. ";
console.log( reverseYodaStyle.prependTo("No! Try not.") );   // outputs: "Do, or do not. There is no try. No! Try not."

capitalize

var capitalizeMe = "hello";
console.log( capitalizeMe.capitalize() );             // outputs: "Hello"
console.log( capitalizeMe.capitalize("w") );          // outputs: "Hello"
console.log( capitalizeMe.capitalize("word") );       // outputs: "Hello"

capitalizeMe = "hello world!";
console.log( capitalizeMe.capitalize() );             // outputs: "Hello world!"
console.log( capitalizeMe.capitalize("e") );          // outputs: "Hello World!"
console.log( capitalizeMe.capitalize("every-word") ); // outputs: "Hello World!"

capitalizeMe = "no! try not. do, or do not. there is no try.";
console.log( capitalizeMe.capitalize("p") );          // outputs: "No! Try not. Do, or do not. There is no try."
console.log( capitalizeMe.capitalize("paragraph") );  // outputs: "No! Try not. Do, or do not. There is no try."
console.log( capitalizeMe.capitalize("e") );          // outputs: "No! Try Not. Do, Or Do Not. There Is No Try."

console.log( capitalizeMe.capitalize("s", ".") );     // outputs: "No! try not. Do, or do not. There is no try."
console.log( capitalizeMe.capitalize("split", ".") ); // outputs: "No! try not. Do, or do not. There is no try."
console.log( capitalizeMe.capitalize("s", ",!") );    // outputs: "No! Try not. do, Or do not. there is no try."

count

var text = "no! try not. do, or do not. there is no try.";
console.log( text.count() );      // outputs: 11 (word count)
console.log( text.count("o") );   // outputs: 7  (character count)
console.log( text.count("do") );  // outputs: 2  (string count)

isEmail

var temp = "this.is@an.email.com";
console.log( temp.isEmail() );    // outputs: true
temp = "this,however@is.not.an.email.com";
console.log( temp.isEmail() );    // outputs: false

isURL

var temp = "https://github.com/karalamalar/StringExtensions";
console.log( temp.isURL() );      // outputs: true
temp = "github.com/karalamalar/StringExtensions";
console.log( temp.isURL() );      // outputs: false

toTime (integer)

var temp = 134;
console.log( temp.toTime() );     // outputs: 00:02:14
console.log( temp.toTime(true) ); // outputs:     2:14 (compact mode)

toTime (string)

var temp = "4543";
console.log( temp.toTime() );     // outputs: 01:15:43
console.log( temp.toTime(true) ); // outputs:  1:15:43 (compact mode)

valiDate*

var myDate = "8.1.2013";
if(myDate = myDate.valiDate()) {
  console.log( myDate ); // outputs: "Tue Jan 08 2013 00:00:00 GMT+0200 (GTB Standard Time)"
}
myDate = "13.13.2013";
console.log( myDate.valiDate() ); // outputs: false

Copyright (c) 2009-2013 İzzet Emre Erkan
Licensed under Creative Commons Attribution-Share Alike 3.0 Unported License
http://creativecommons.org/licenses/by-sa/3.0/